Jeff Davis <pgsql(at)j-davis(dot)com> writes:
> I like the fact that this patch does not modify the numeric ADT. It
> still relies on the fact that the numeric type will never make use of
> the minimal varlena struct, however. I bring this up in case someone
> sees it as a problem.
I'm pretty certain I recall Greg Stark recommending that we adopt
something like that as the standard numeric representation of zero.
It didn't get done yet, but it might happen someday.
regards, tom lane